Vaporizing device for engines



Feb. 25, 1930. P, KENf 1,748,717

VAPORIZING DEVICE FOR ENGINES Filed Aug. 6, 1925 71 atfm neg Patented Feb. 2 5, 1930 UNITED STATES PATENT OFFICE- PHILIP JAMES KENT, F DETROIT, MICHIGAN, ASSIGNOR T0 CHRYSLER CORPORATION,

' OF HIGHLAND PARK, MICHIGAN A CORPORATION OF DELAWARE VAPORIZING DEVICE ENGINES Application filed Augustli, 1925. Serial No. 48,65 0.

It is the primary object of my invention to provide means for facilitating the starting of internal combustion engines, particularly in cold weather when'vaporizing of the fuel 5 to be burned by the engine upon the starting thereof is difficult.

To accomplish this result, I have provided an electrical heating unit in the line ordinarily used for the air intake in such devices, for the purpose of catchin theunvaporized liquid fuel which normally fiows downwardly through such passage and there vaporize it so that it may be carried to the cylinders of the engine in vaporized form.

In order that the heating unit may not interfere withthe passage of air I have located the same at one side of the passageway but communicating with it. r

lVith the aboveand other objects in view, my invention consists of the arrangement, combination and construction of the various parts of my improveddevice as described in the specification, claimed in my claims and shown in the accompanying drawings, in

which Fig. 1 is a side elevation showing my improved device, certain of the parts being cut away and others being shown in section.

Fig. 2 is a sectional end View showing my improved device and its location with respect to the air intake passage.

r I have shown a conventional carburetor 10 having a fuel inlet passage 11 and connected through the passage 12 with the passage 13 such as is conventionally provided upon intake manifolds for internal combustion engines. The passages 12 and 13 are flanged as at 14 and 15 and secured together by capscrews or bolts 16. An air intake passage 17 extends at right angles to the carburetor 10 and communicates with'the passage 12. A conventional butterfly valve 18 for choking the air supply is provided in the air passage 17 being pivoted as at 19 for operation by alever 20 and rod 21, the latter extending to the usual dash of a motor vehicle. 1

An integral apertured boss or housing 22 is provided on a section of the passage 17, the

aperture being open to the air inletpassage' this interior portion I provide a suitable ab and being also .connected therewith by a duct 23. A plug 24 isscrewed into the bottom of the portion 22, the upper portion 25 of the plug being smaller than the aperture in the portion 22so as to provide a space 26 between the wall of the aperture and the outside of the portion 25. -Any unvaporized or liquid fuel passing from'thecarburetor 10 and fail ing to continue through the passage 12 and into the intake manifold,; will flow through the passage 17 and into the space26. This will be facilitated by reason of the fact that under'normal operating conditions the butterfly valve 18 will be closed by the operator when he is-endeavoring to start the engine in cold weather. Such fuel-will pass through theplurality of openings 27 which are provided adjacent the bottom of the portion 25 into the interior of the portion 25. In

sorbent material 28, such as asbestos, and within the a-sbestosI provide a 'coil'of high reslst-ance metal 29, which coil may be suitably connected through the plug 24 and the cap 30 thereon, with a wire 31 leading to a 7 suitable source of electrical energy, such as astorage battery. 1

- At the ti e of starting the engine the operator will close suitable connections so as to connect the wire 31 with its source of elec-le tricity so that the high resistance unit 29 will become heated, at which time the fuel which has been absorbed by the asbestos 28 will be heated to the vaporizing point and will pass off in the form of vapor through the passageway 32 into the passage 17, the passage 12 and thence into the intake manifold and the engine. Being thus passed in vaporized form, it will readily ignite in the engine and permit prompt starting thereof.

It will be apparent that all liquid fuel passing down the passage 17 will be drawn into the passage 26. Small quantities of such fuel will pass through the duct 23 and any excessive quantities thereof will pass directly into the chamber. It is further apparent that'as fast as such fuel is collected it will be vaporized into the engine, and that the top of the portion 25, being higher than the connection between the passage 17 and the chamber 26, prevents fuel flowing directly through the opening 32. 7

It will be obvious that various changes may be made in the arrangement, combination and construction of the various parts of my improved device without departing from the spirit of my invention, and it is 'il-ltention to cover by my claims 'such changes as may be reasonably included within the scope thereof.

What I claim is-: V

1. In combination, an intake manifold having a fuel passage and an air passage connected therewith, means permitting portions of unvaporized fuel from said fuel passage to enter said air passage, a receptacle c 0nnected with said air passage atone side there of, a hollow member positioned in said receptacle and having its one end extended above the connection between said air passage and receptacle and entirely outside of said air passage, a space between the inner wall of the receptacle and the outer wall of the hollow member for the passage of fuel, means for feeding such fuel into said hollow member at the lower portion thereof and means for heating such fuel to permit its passage through the extended end of the hollow member to the manifold.

2. In combination, an intake manifold having a fuel passage and an air passage connected therewith, a receptacle "having an opening through the wall of said :air passage above the lower portion thereof, forming a communication between said chamber and said air passage, said air passage having a passage forming a communication between the lowest portion of said air passage and said receptacle, a heating element in said receptacle, and means entirely without said air passage for delivering fuel vaporized by said heating element into said air passage.

PHILIP JAMES KENT. 

